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From "Marc Schaaf (JIRA)" <j...@apache.org>
Subject [jira] Commented: (DOSGI-70) Reconnect automatically to Zookeeper after a connection loss / timeout
Date Tue, 27 Apr 2010 20:38:36 GMT

    [ https://issues.apache.org/jira/browse/DOSGI-70?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12861526#action_12861526
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Marc Schaaf commented on DOSGI-70:
----------------------------------

With regard to the discussion on the mailing list: 

As far as I see it, it is not possible to "simply" reconnect once the session with the Zookeeper
server has expired as all the registered watches probably need to be reregistered. However
based on the response from the Zookeeper guys, the session timeout could be increased to at
least avoid this issue for the moment. Unfortunately the discovery currently doesn't provide
any configuration option for it, so you would have to change this in the source code. However
it shouldn't be too hard to add this configuration option to the Zookeeper discovery.

In general I agree that the connection management of the discovery implementation needs to
be enhanced!

Cheers,
Marc

> Reconnect automatically to Zookeeper after a connection loss / timeout
> ----------------------------------------------------------------------
>
>                 Key: DOSGI-70
>                 URL: https://issues.apache.org/jira/browse/DOSGI-70
>             Project: CXF Distributed OSGi
>          Issue Type: Improvement
>          Components: Discovery
>    Affects Versions: 1.0, 1.1, 1.2
>            Reporter: Julien Vey
>
> When a remote service is disconnected from the ZooKeeper Server and when the session
is expired, it should be able to try to reconnect automatically.
> Here the discussion on the mailing list : http://old.nabble.com/DOSGI-Discovery-with-Zookeeper%2C-re-establish-session-after-a-timeout-tt28305408.html

> Some links to zookeeper about this matter
> http://wiki.apache.org/hadoop/ZooKeeper/FAQ#A3
> http://hadoop.apache.org/zookeeper/docs/current/zookeeperProgrammers.html#ch_zkSessions

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